Reports of bugs for iOS 7 has been relatively quiet for the past few weeks but a new one has a emerged. Users are finding errors within the calendar app when it comes to daylight savings time. Some users note that the time for the built in calendar app for the iPhone was displayed incorrectly. This error is minute since these users note that the program can't support the shift to daylight savings time. The design will look the same except it will display the current time with one hour behind. Planned events and alarm clocks occur without the time affecting them.
While this error will be fixed quickly, it has happened before with iOS 4. In Europe, the iPhone bug set off alarms after the shift over to DST.
The video above shows how the issue would ignore the settings iPhone owners may have set for their phone. It took awhile for Apple to issue a fix for this so expect this one to be handled before November 3rd.